| Dendrobium violaceum subsp cyperifolium photo C. Solimbergo |
| taxonomy | described by | Kraenzlin, Friedrich Wilhelm Ludwig |
| published in | Das Pflanzenreich 108 1910 | |
| subsp cyperifolium | described by | (Schlechter) Reeve, Thomas M. & Woods, Patrich James Blythe |
| published in | Notes from the Royal Botanic Garden, Edimbirgh 46 : 236 1989 | |
| family | Orchidaceae | |
| subfamily | Epidendroideae | |
| tribe | Malaxideae | |
| subtribe | Dendrobiinae | |
| genus | Dendrobium Swartz 1799 | |
| chromosomes | 2n = 38 | |
| metabolism |
CAM pathway, stomata of the leaves are open at night. |
|
| (K.Silvera, L.S. Santiago, J.C. Cushman, K. Winter - International Symposium on Plant Biology, August 2013) | ||
| it is useful give the soluble mineal nutriens, on the roots. | ||
| native of | origins | orizontal branches of primary forests, Papua (Sepik, Enga, Finisterre Range, West Nassau Mountains, |
| Nepesip, Nondugl, Erl River, Korombi, Mt. Aigeget), Indonesia (Irian Jaya, Milne Bay, Mt. Jaya, |
||
| Mt. Castensz, Cyclop Mountains, Wissel Lake) | ||
| altitude | 750 - 2300 m (2475 - 7590 ft) | |
| habitat |
climate informations from Laiagam (Enga, Papua) |
|
| Köppen climate classification : Af, humid tropical climate of the rainforest | ||
| (no winter season, more abundant rainfall) | ||
| the weather station data (temperatures are calculated for an altitude of 1500 m / 4950 ft) : | ||
 |
||
| photoperiod | in Laiagam this orchid bloom with a photoperiod, that varies during the year, from 12 h 21 m' to 11 h 39 m' | |
| life form | epiphyte or litophyte | |
| brightness | partial shade | |
| inflorescence | length | 1 cm (0.4"), from the upper nodes |
|
nr flowers |
1 - 2 | |
| size | single flower 3.5 L 1.5 cm (1.4" L 0.6") | |
| durata | inflorescence ≈ 60 days | |
| time | to bloom from birth, ≈ 50 days | |
| CITES | appendix | II |
